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Bad Calculated Bond Lengths

List of molecules with calculated bond lengths that differ by more than 0.050 Å from experimental bond lengths.

Calculated at MP3/cc-pVTZ

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C3H3NO Isoxazole rCH 1.075 1.425 0.350
C4H6 1-Methylcyclopropene rCH 1.085 4.199 3.114
C4H6 1-Methylcyclopropene rCH 1.087 3.414 2.327
C4H6 1-Methylcyclopropene rCC 1.476 2.253 0.777
C4H6 1-Methylcyclopropene rCH 1.087 1.821 0.734
C4H6 1-Methylcyclopropene rCH 1.098 1.771 0.673
C4H6 1-Methylcyclopropene rCH 1.098 1.755 0.657
C4H6 1-Methylcyclopropene rCH 1.070 1.508 0.438
C4H6 1-Methylcyclopropene rCC 1.515 1.086 -0.429
C4H6 1-Methylcyclopropene rCC 1.300 1.511 0.211
CH3SO2NH2 methanesulfonamide rCN 1.207 1.661 0.454
N2O4 Dinitrogen tetroxide rNN 1.782 1.672 -0.110
GaP Gallium monophosphide rPGa 2.450 2.228 -0.222
Ar2 Argon diatomic rArAr 3.758 4.103 0.345
Ar2+ Argon diatomic cation rArAr 2.320 2.425 0.105
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.280 0.240
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.086 -0.154
Be2 Beryllium diatomic rBeBe 2.460 2.664 0.204
AlP Aluminum monophosphide rAlP 2.400 2.219 -0.181
AlP Aluminum monophosphide rAlP 2.220 2.078 -0.142
Mg2 Magnesium diatomic rMgMg 3.891 4.013 0.123
21 molecules.